remove reg files no longer needed after install
Whitelist bit32 as a pre-satisfied dependency when running Lua 5.2.
Make sure .git is not rsync'd
factor out rsync flags to make them consistent
When you supply an existing Lua installation, the suggested value for LUA_CPATH is wrong.

```sh
install /P c:\LuaRocks /LUA d:\trunk_git\packages\Lua5.1 /F

(...)

 You may want to add the following elements to your paths;
PATH     :   d:\trunk_git\packages\Lua5.1\bin\;c:\LuaRocks\2.1
LUA_PATH :
c:\LuaRocks\share\lua\5.1\?.lua;c:\LuaRocks\share\lua\5.1\?\init.lua
LUA_CPATH:   d:\trunk_git\packages\Lua5.1\lib\lua\5.1\?.dll
```

Even `luarocks path` shows the correct values:

```sh
SET LUA_CPATH=c:\LuaRocks/lib/lua/5.1/?.dll;c:\LuaRocks\lib\lua\5.1\?.dll
```
Merge pull request #152 from ignacio/install_wrong_cpath

When you supply an existing Lua installation, the suggested value for LU...
Added a utility batch file to pack LR on windows
Merge pull request #153 from Tieske/master

Added a utility batch file to pack LR on windows for test purposes
detect native multiarch directory on linux
Remove trailing space from dir_name; do not rely on setfenv to check for Lua 5.1, this breaks users of 'strict' globals checker
Merge branch 'master' of github.com:keplerproject/luarocks
Merge remote-tracking branch 'upstream/master' into linux-multiarch
support for tables in (runtime_)external_deps_subdirs.*
adding Lua 5.2 paths to wrapper scripts
update installer to work on Lua 5.2
Merge pull request #156 from Tieske/Win_installer_5v2

update windows installer to work on Lua 5.2
Merge pull request #157 from Tieske/cleanup_reg_files

Remove reg files no longer needed after install (Windows)
Merge remote-tracking branch 'upstream/master' into linux-multiarch
changed multiarch detection and site_config variables
A simpler approach for reducing output clutter. Closes #158.